Aggregate Data Exchange
The Aggregate Data Exchange (ADX) Profile supports interoperable public health reporting of aggregate health data. These most typically take the form of routine reports (weekly, monthly, quarterly etc.) from a health facility to some administrative jurisdiction such as a health district, though there are numerous other use cases such as international reporting and community health worker reporting.
The motivating context for this profile originates in health systems management in developing countries though its potential use is not restricted to these environments. What are collectively called developing countries are very diverse environments. Information systems need to be able to scale and adapt across diverse and changing conditions. Electronic medical record systems (EMR) penetration is often limited (but also often growing) leading to varied and mixed modes of data collection and transmission.
The ADX specification does not define the semantic content of the routine reports. Rather it provides a mechanism by which jurisdictions can define reports using SDMX data structure definitions. Producers and consumers of ADX data messages make use of these definitions to validate and constrain the content. This relationship is illustrated in the diagram below:
The primary benefit of ADX is that it allows jurisdictions to formally define and publish routine report definitions. Users of ADX are then able to produce and consume ADX messages which can be validated according to the published definitions. The ADX data format is relatively simple, unemcumbered and extensible making it easy to implement in a range of different systems.
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National Health Management Information Systems would make use of ADX to receive routine reports from health facilities and other national systems.
EMR systems at health facilities might use ADX to create their monthly reports.
National logistics and human resource systems might use ADX to produce summary data.
International organisations might use ADX to harmonise reporting between regions and countries.
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- PACS systems may store, manage, and/or display Evidence Documents.
- Display systems may query, retrieve and display Evidence Documents.
- Reporting workstations may retrieve, process and include details from Evidence Documents in reports
Actors & Transactions:
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- Reporting Workflow [RWF] may use Evidence Documents as inputs to the reporting process.
- Simple Image & Numeric Reports [SINR] may include data copied from Evidence Documents.
- Cross-enterprise Document Sharing for Imaging [XDS-I] can be used to share Evidence Documents between sites over a network.
- Portable Data for Imaging [PDI] can store Evidence Documents on media such as CDs.
- Import Reconciliation Workflow [IRWF] can fix patient ids, etc. of Evidence Documents when importing.
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